:root {
  --bg: #f9fafb;
  --bg-alt: #ffffff;
  --accent: #2f855a;
  --accent-soft: #c6f6d5;
  --text-main: #1a202c;
  --text-muted: #4a5568;
  --border-soft: #e2e8f0;
  --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.08);
  --radius-lg: 18px;
  --radius-xl: 26px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #e6fffa 0, #f9fafb 40%, #ffffff 100%);
  color: var(--text-main);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, 100% - 2.5rem);
  margin: 0 auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(250, 252, 255, 0.88);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: linear-gradient(135deg, #38b2ac, #68d391);
  color: white;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 8px 20px rgba(56, 178, 172, 0.35);
}

.brand-text h1 {
  font-size: 1.1rem;
  margin: 0;
}

.brand-text .tagline {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-size: 0.96rem;
  color: var(--text-muted);
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.4rem;
}

/* Hero */

.hero {
  padding: 2.5rem 0 2.75rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  align-items: stretch;
  gap: 2rem;
}

.hero-copy h2 {
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  margin: 0 0 0.75rem;
}

.hero-copy p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #38b2ac, #48bb78);
  color: #ffffff;
  box-shadow: 0 16px 30px rgba(56, 178, 172, 0.35);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 40px rgba(56, 178, 172, 0.40);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--accent);
  border-color: var(--accent-soft);
}

.hero-meta {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.hero-card {
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-xl);
  padding: 1.4rem 1.4rem 1.6rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-soft);
}

.hero-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.hero-card ul {
  padding-left: 1.2rem;
  margin: 0 0 0.75rem;
  font-size: 0.94rem;
}

.hero-card-note {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Sections & cards */

.section, .section-alt {
  padding: 2.25rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.86);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.25rem 1.3rem;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
}

.card h3 {
  margin-top: 0;
}

.card p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.card .meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Two-column */

.two-column {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.75rem;
  align-items: flex-start;
}

.feature-list {
  padding-left: 1.2rem;
  margin-top: 0.5rem;
}

.feature-list li {
  margin-bottom: 0.35rem;
}

.aside-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.2rem;
  border: 1px dashed var(--accent-soft);
  font-size: 0.9rem;
}

.aside-card h3 {
  margin-top: 0;
}

.small {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.section h2 {
  margin-top: 0;
}

.section-cta {
  margin-top: 1.1rem;
  font-size: 0.9rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-soft);
  background: #ffffff;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  padding: 1.75rem 0 1.4rem;
}

.footer-col h4 {
  margin-top: 0;
  margin-bottom: 0.6rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.3rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-soft);
  padding: 0.75rem 0 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.disclaimer {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Layout helpers */

.page-header {
  padding: 1.75rem 0 0.5rem;
}

.page-header h2 {
  margin: 0 0 0.4rem;
}

.page-header p {
  margin: 0;
  color: var(--text-muted);
}

.page-main {
  padding-bottom: 2.5rem;
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
}

.article-list li {
  margin-bottom: 0.9rem;
}

.article-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.content {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--border-soft);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.04);
}

.content h1, .content h2, .content h3 {
  margin-top: 0;
}

.content h2 {
  margin-top: 1.4rem;
}

.content p {
  font-size: 0.96rem;
}

.content ul {
  padding-left: 1.2rem;
}

.content li {
  margin-bottom: 0.25rem;
}

/* Contact form */

.form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: flex-start;
}

.form-field {
  margin-bottom: 0.8rem;
}

label {
  display: block;
  font-size: 0.86rem;
  font-weight: 500;
  margin-bottom: 0.15rem;
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  padding: 0.55rem 0.7rem;
  font-family: inherit;
  font-size: 0.92rem;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

/* Responsive */

@media (max-width: 880px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .two-column,
  .form-grid,
  .footer-top,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .main-nav ul {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem 0 0.75rem;
  }
  .main-nav ul.open {
    display: flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
}